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Lenovo L21M4P71 Replacement Battery vs Lenovo L23D4P71 Replacement Battery: Comparison

L21M4P71 Replacement Battery vs L23D4P71 Replacement Battery: the battery model code difference

These two are close on paper, and battery model code is the only measure that separates them at all: L21M4P71 Replacement Battery L21M4P71 against L23D4P71 Replacement Battery L23D4P71. There is a split on expected firmware state as well, unknown on the L21M4P71 Replacement Battery versus full_function on the L23D4P71 Replacement Battery. Compatible models is not the same on both, Lenovo ThinkPad P14s Gen 5 AMD on the L21M4P71 Replacement Battery versus Lenovo ThinkPad T14 Gen 5 on the L23D4P71 Replacement Battery.

Which should you buy, L21M4P71 Replacement Battery or L23D4P71 Replacement Battery?

The L21M4P71 Replacement Battery suits ThinkPad P14s Gen 5 AMD owners, though it is not built for anyone needing a generation-specific confirmed capacity. Buy the L23D4P71 Replacement Battery for ThinkPad T14 Gen 5 owners, though it is not the pick for earlier ThinkPad T14 generations.

Where the two are identical

Where they agree, they agree completely, nominal voltage, capacity wh, capacity basis and shipping classification included, so the decision does not turn on any of those.

Specs and benchmarks

  • Brand

    Lenovo L21M4P71 Replacement Battery
    Lenovo
    Lenovo L23D4P71 Replacement Battery
    Lenovo
  • Battery Model Code

    Lenovo L21M4P71 Replacement Battery
    L21M4P71
    Lenovo L23D4P71 Replacement Battery
    L23D4P71Best
  • Nominal Voltage

    Lenovo L21M4P71 Replacement Battery
    15.48 V
    Lenovo L23D4P71 Replacement Battery
    15.48 V
  • Capacity Wh

    Lenovo L21M4P71 Replacement Battery
    52.5 Wh
    Lenovo L23D4P71 Replacement Battery
    52.5 Wh
  • Capacity Basis

    Lenovo L21M4P71 Replacement Battery
    Seller Claim
    Lenovo L23D4P71 Replacement Battery
    Seller Claim
  • Expected Firmware State

    Lenovo L21M4P71 Replacement Battery
    unknown
    Lenovo L23D4P71 Replacement Battery
    full_function
  • Shipping Classification

    Lenovo L21M4P71 Replacement Battery
    UN3481
    Lenovo L23D4P71 Replacement Battery
    UN3481
  • Compatible Models

    Lenovo L21M4P71 Replacement Battery
    Lenovo ThinkPad P14s Gen 5 AMD (Ryzen 7 PRO 8840HS, 32GB, 1TB)
    Lenovo L23D4P71 Replacement Battery
    Lenovo ThinkPad T14 Gen 5 (Core Ultra 7 155U, 16GB, 512GB)

    Which one should you pick?

    Choose Lenovo L21M4P71 Replacement Battery if you want the higher capacity wh (52.5 Wh vs 52.5 Wh).

    Choose Lenovo L23D4P71 Replacement Battery if you already have it on hand or find it at a lower price.

    More comparisons in Laptop Batteries